diff --git a/package-lock.json b/package-lock.json
index ed08932..8be2a0e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4199,9 +4199,9 @@
       "dev": true
     },
     "elliptic": {
-      "version": "6.5.2",
-      "resolved": "https://registry.npm.taobao.org/elliptic/download/elliptic-6.5.2.tgz?cache=0&sync_timestamp=1574449776597&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Felliptic%2Fdownload%2Felliptic-6.5.2.tgz",
-      "integrity": "sha1-BcVnjXFzwEnYykM1UiJKSV0ON2I=",
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.3.tgz",
+      "integrity": "sha512-IMqzv5wNQf+E6aHeIqATs0tOLeOTwj1QKbRcS3jBbYkl5oLAserA8yJTT7/VyHUYG91PRmPyeQDObKLPpeS4dw==",
       "dev": true,
       "requires": {
         "bn.js": "^4.4.0",
@@ -4215,8 +4215,8 @@
       "dependencies": {
         "bn.js": {
           "version": "4.11.9",
-          "resolved": "https://registry.npm.taobao.org/bn.js/download/bn.js-4.11.9.tgz",
-          "integrity": "sha1-JtVWgpRY+dHoH8SJUkk9C6NQeCg=",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.9.tgz",
+          "integrity": "sha512-E6QoYqCKZfgatHTdHzs1RRKP7ip4vvm+EyRUeE2RF0NblwVvb0p6jSVeNTOFxPn26QXN2o6SMfNxKp6kU8zQaw==",
           "dev": true
         }
       }
@@ -7284,7 +7284,8 @@
       "version": "2.2.2",
       "resolved": "https://registry.npm.taobao.org/picomatch/download/picomatch-2.2.2.tgz",
       "integrity": "sha1-IfMz6ba46v8CRo9RRupAbTRfTa0=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "pify": {
       "version": "4.0.1",